Rotary pump.



H. J. MEYER.

HOARY PUMP.

APPLICATION mtu 1AN28.19:9.

2 SHEE1S--SHEET l.

UNITED STATES PATENT oEEioE.

RALPH J. MEYER, 0F GRAND JUNCTION, COLORDO, ASSIGNOR, BY DIRECT AND MESN ASSIGNMENTS, TO BULLDOG YUMP CO., A CORPORATION OF COLORADO.

ROTARY. IEUMP.

Specification of Letters Patent.

Patented Dec. 9, 1919.

Application filed January 2G, 1919, ,Serial No. 273,565.

To all Awhom, it may concern.'

Be it known that I', RALrH d. MEYER, a

citizen of theUnited States, residing at Grand Junction, in the county of Mesa 'and State ot Colorado, have invented a new and useful Rotary Pump, of which the itollow- .ine is a specification. llllhis invent-ion relates to rotary pumps, one of its objects being to provide hingedly mounted pistons carried by the rotor and so arranged as to balance the pressure so that frictional contact between the pistons and the stator will not be excessive in the operation otl the pump.

A further object is to provide ine-ans of simple and eilicient construction for actuatv ing' the pistons positively relative to the rotor.

Another object is to provide a pump which is of simple construction and whichcan be readily opened for lthe purpose of repairing or cleaning the parts. A

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention consists oi' certain novel details of construction and combination ot parts which will be hereinafter more fully described and pointed out in the claims itbeing understood that various changes may be made in the construction Land arrangement' of thelparts without departing from the spirit, or sacrificing any oi" the advantages oi2 the invention as set forth in the appended claims.

In the accon'ipanying drawings the preferred form of the invention has been shown. A

In said drawings:

`Figure l is a central vertical sectioni through the pump, said section beingtaken on the line 1 4, Fig. f2..

.Fig 2 is a plan view of the pump.

Fig. 3 is a section on line 3-3, Fig. 2.

Fig. et is aseetion on line t-fl, Fig. 1.

Referring to the figures by characters of reference l designates thelbase ot' a stator 2', there being a circular chamber 3 within the stator provided, at the base, with oppositeljy1 disposed inlet and outlet ports 4 and 5 respectively. An abutment bar 6 is mounted in the upper portion of a transverse ygroove 7 in the base l and under the center ot the chamber 3 and has downwardly eonverginiT bottom faces resting on oppositely disposed wedge blocks 3 which Aare sliduble within the groove '7. A..dpisting screws 9 src extended througli the end walls of the groove 7 and bear against the outer or large ends of the blocks 8. Thus by rotating these screws thel blocks can be adjusted toward each other, thus to raise the abutment 6. Secured on the abutment are arcuate strips 10 constitue ing guides, these strips extending across the ports i and 5 and being secured to the wall' being left between the ends of the rotorl 'it and the heads 11 in which the .rails 19.

are located. The rotor is provided at gne or more points in its periphery with segmental pockets 1G ext-endingl from end to end of the rotor. .Extending into each of the pockets is a piston consisting of an arcuate plate 1T hinged along one edge to the rotor at the shallow end ofthe pocket 16 and. extending trom the other edge of the plate 17 is a head 18 which constantly projects into the pocket and has its front or advancing face recessed as shown at 19 and provided with a covering ot soft material Q0 :formed of rubber, canvas or the like. This edge is adapt` ed to fit snugly against and to slide upon the end arcuate wall Q1 of the pocket 16. An opening 22 may be formed in the plate 17.

The hinge of each plate includes a, shaft Qi which extends longitudinally within the rotor 14 and beyond the ends thereof, there being an arm 25 secured to each projectingend of the shaft. Each arm has a lever 2G pivotally mounted thereon and carryinga roller 27 at one end adapted to `travel alongr the 'adjacent cam rail 12. spring which is interposed between and secured to the arm 25 and the lever 26, serves to hold the roller 27 normally pressed yieldingljv against the rail 12.

Vhen thev shaft- 13 is rotated in the direction indicated by the arrow in. Fig. il. the rotor il, will move therewith. The tree llongitudinal edges of the plate 'l'T will ride along' the inner surface of the chamber wall toward the outlet port the water or other liquid trapped 'in the path thereof will be the pr mi a of the. Walter lminp; halxuionfl upon lh@ hing@l Q3 he'oansa the roruasnll 'fana 1S) of the piston extends downwardly into Ythe pocket, 1G, rLlius allowing rho pressure to he distributed evenly at all `liirnQS agrainnl thehoafl 18. Thus friclional ongagninnnl' of the piston with the wall olf tho .nl-alor in materially reduced. As tho pislon approaches and 'passes the outlnt, port it will be gradually deflected inwardly hy lha gl'rips 10 and hy the action of the rollin: 2T on tho Cain rail 12. Any water or ollnr liqnnl that may have heon fleposital'l in tho porlint 16 willv ha free lo escapo l'hroilgh llw one ings hiring this inward niofrninnl' ol the pistons. The pistons will pass Succo sivoly orar the ahutniein. (i and will than move gradually outwardly 'from l'hnir pockets so as to trap a non' supply of liquid and fol-Co it 'from tho inlot to tho onlnt. lli has been found to h@ advantagnoiw to providetlie rocas-S l) with tho soft cm'rring 2l) which will giro a bollini: `grip anon l'lin lilnl'nl being' pnnn'iell. lailiirnlar importance ia al "led to the use ol tho rachas piflon lnail l 'whereby' flaring' the pumping or forng operation, the pr .irc his alistrilnnwl i. umgjhoin; tha arca o'l tho hvarl and thus balanced upon 11h@ hing-o Thr haalls. olI 'alle Stator can lilo removed roaflily., l'lnia` al lowing;y Conveninnt ronioval ot' `llnl rolor when it is drsirel io Clean or repair the pump.

llhat in clailnnd is:

1.111 a rotary pump l'ho ronihinalion with a rstator. havingv opposml inlolV and ont- .lob porlf. oil? a rotor having a aopgnnnifal porlel in its periphery, a sliall` exlonclingr through, the rolor al' one @nal of t'hr porkrt. a plate Savin-all lo and nlovahlr n'ith lia Shaft, a mons-d hanfl nxtonding Vlroin thv plato and inl'o lha porknli. .aanl hrall ainl plalo ronfsli'ulin@` a pison. thv Vorras in lha hond, ionslil`nin5 moans for ilirm'l'ing pron sur@ o' llw panipml llnizl againsl: 'that porl'fion ol" lihn hrznl projnring into lh(x porlira. a` rain lnyoinl on(l nnll ol lha rotor. nml moans upon llw rehall. l'or nng'agingi l'lnx rain during' thoinovrninnl ol ihr rolor lo swing' tho piafon noailiroli into anml l n ol llw noolwl'.

"2. ln a rotar)Y plnnp i'lio combination willi a` sslalor` having an inlor. port and an outlnt port', ol a rotor having a srgniental recess in im pariphnry. a plato hiligeally niounlnil in rho rnrlss ainl haringr a Yonl oponino'. a lio-atl @X'ainling from tho Vplanx and into lh@ rr was, mill plain having a rnrvas in il's 'front or advancing' far(l for (listrihnl'injgl prnssnrn ol llho lnnnpnil lluill to all portions of tho hoall v gtnnlling into lh(A poclnt or roc0# in lho rotor. a (lnlsnfhahlo hvznl on l'lln alalor. a rain rail lhornon` a. .shaft nonnonted to and niorahlc Vwith 1li@ niflon platlx and LXlnnlling lan'oinl om` rial ol: tha rotor, an arni thornn on..` and a spring rontrollml lovnr nionnl'rll on tln` arnl ainl engaging! the nani rail.

il. ln a rol'ary linnn] ln Combination with a stator having` an inlvf. port and an oirl'laty port. thorn han;- a ,Q'roow in tho stator he 'tinnen anl ports. of an ahntilnonr, har lnorf ahl)Y inonnlrll Wifhin lh@- groove,-opposnfl wealgingj hlouka n'il'hin the groom and conflll. ling! supporta for har, nneans4 Jfor adjust ing-*I tho blockI toward nach other to shift lha hair inwardly, a'rcnalo guido strips; oxtonllingj {roni fha har across the ports. a rollor ha vingt :i augmenta] pocket., and a piston liingollly nioiintnfl Within the pocket and niomhlo alongr the arcuate, strips and across they abntnnmt bar.

In testimony thatY I `claim the 'foregoing as nl v own l have` horcto affixed my signatur in thv presence of two witnesses.

RALPH J. MEYER.

W'itn:

JAMES AR. MURPHY, GEORGE W. GORDAN. 

